William n



(No Model.) v

W. NGRISWOLD.

RBBPING sAILs.

No. 253,371. Patented Feb. 7,1882.

I a /TTUTT ffm @M1/2M* wma/Q 1),. Mr/6%? UNITED STATES WILLIAM N.GRISWOLD, OF NEW YORK, N. Y.`

PATENT OFFICE.

REEHNG sAlLs.

SPECIFICATION form-ing part of Letters Patent No. 253,371, datedFebruary '7, 1882.

To all 'whom it may concern i Be it known that I, WILLIAM N. GnIswoLD,of. New York city, county of New York, and State of New York, haveinvented'certain new and useful Improvements in Reef-Booms, of

.which the following is ainll, clear, and exact description, referencebeing had to the accompanying drawing, and to the letterslof referencemarked thereon. c

My invention has relation to means for facilitating and assisting'inshortening and carrying sail on fore-and-afters and other craft;

and the objects of my invention are to render,

'consists essentially in the application to the sail of what Idenominate my reef-boom, and the proper or necessary ad j uncts forInoving the same, all of which will be herein firstV fully described,and then pointed ont in the claim.

In the accompanying drawing, forming part of this specification, I haveshown a fore-andai't sail with in y improvements applied thereto. Thisillustration, in connection with 'the following explanations, will befound sufiicient to enable others skilled in the art to practice myinvention. f

. nary form and construction.

srs

A is the mast; B, the top-mast; O, the main- I boom, and D the'gaff.These are of the ordi- Sis th'e sail. At the close-reef band or otherpart of the sailabove the foot I apply the reef-boom E,

the same being secured to or connected with the sail,.for which purposeVthe sail may be separated and fitted to be stoppered to the reef-boom;or a pocket may be formed in the sail at thedesired location, and madeto rel ceive the reef boom, substantially as indicated in the drawing.Other meansof connecting the reef-boom and sail maybe adopted. Thevreef-boom E should be made of the best material for the purpose and ofno greater weight and strength than are needed to take the bulgestrainof the sail when full of wind. Under ordinary circumstances adiameterof. about onethird that of the main-boomv will be foundsufficient for all required purposes.

The reefing of a fore-and-aft sail, especially in rough weather, is adifcult piece of work,

Application filed December 5, 1881. (No model.)

usually requiring all hands, not infrequently y accompanied by danger oraccident, and con-v suming much valuable time.- With my improvedreef-boom the watch on deck can close-reef the sail very easily andquickly. All thatis necessary is to lul' and shake the sail, lower alittle on the throat-halyards F'- and peak-'halyards G, and then set thereefboom well down on the main-boom with the reef-gigs H-H properlyapplied upon the two booms, pass the necessary number of lashings.around the two boomsswny upon the throat and peak halyards, and resetthe sail. The reef-gigs H H may be convenientlyunited allter passing thelast block on the main-boom, so as to form a single line, H', asindicated, and for the purpose of facilitating manipulation, as will bereadily understood The reefboom being rigid, and being connected withthe sail, obviates bulging` toa great and benecial extent, holding thesail iiat, allowing the vessel to lie closer to the Wind, and alsoenabling the'vessel to carry sail in threatening weather for a greaterlength of time with perfect safety.

Tlieimprovement is applicable to old sail as well as new. Noaller-ations are required, only theadditions necessary to worlr thereef-boom.

When constructed and arranged'to operate in accordance with theforegoing explanations the improved arrangement will be found toadmirably answer the several purposes and objects ofthe invention, aspreviously stated, and not to interfere in any manner with the properworking of the sail. y

More than one reef-boom may be applied to the sail, if desired.

Having now -fully described my invention,

wgf N. GEIswoLD.

Witnesses: f

` F. W. HANAEORD,` Wonrn OsGfooD.

